Dynamical generation of excess of matter over antimatter (also called Baryogenesis, or abbreviated BAU),
in the early Universe is an appealing challenge
to BSM particle physics.
The salient ingredients required for this to unfold were identified by Sakharov [1]}. The three "Sakharov conditions" relevant to us are (1) Lepton number violation
(2) CP violation
(3) Out-of-equilibrium dynamics.
Several approaches have been discussed in the literature to explain
Baryogenesis [2]}, [3]}, [4]} .
A fruitful approach towards this realisation in the context of neutrinos is the possibility
of lepton number violation caused by the decay of Majorana neutrinos.
Decay of these heavy RH neutrinos whose mixing matrix carries complex phases
leads to Leptogenesis [2]}[6]} in the early universe.
This excess lepton number thus generated transforms partially into baryon number
excess via sphaleron processes [7]}.
In our work, we've used the thermal leptogenesis [8]}
to explain the BAU in the visible sector and the handedness asymmetry in the dark sector.
Ginger Labs, Inc. (2021). Notability: User Guide.
Retrieved from
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8.pdf
